hundhausen



2 Sheets-Sheet 1.

(No Model.)

R. HUNDHAUSEN. GOUNTING DEVICE. No. 423,690. Patented Mar. 18, 1890.

ATTORNEY.`

PL runs. Phew-ummm, wuhingm. D. c.

(No Model.) 2 Sheets-Sheet 2.

HuNn'HAUsEN'.

GOUNTING DEVICE.

No. 423,690. Patented Mar. 18, 1890.

WITNESSES: l/VVENTOI? ,za/f @@WL g By UNITED STATES PATENT OFFICE.

RUDOLF HUNDHAUSEN, OF OHARLOFENBURG, NEAR BERLIN, GERMANY,l ASSIGNOR TO ERNEST H. HUNDHAUSEN, OF NEV YORK, N. Y.

COUNTING DEVICE.

SPECIFICATION forming part of Letters Patent No. 423,690, dated March 18, 1890.

Application filed June 5, 1889. Serial No. 313,215. (No model.)

T all wiz/0711, it 1may"concern:

Be it known that I, RUDOLF HUNDHAUsEN, of Charlottenburg, near Berlin, Germany, a citizen of Germany, have invented certain new and useful Improvements in Counting De vices, of which the following is a specification.

This invention relates to improvements in that class of counting devices that are used 1o for automatically counting numbers, revolutions, reciprocations, or other movements.

The object of my invention is to provide a counting device y which is simple in construction, not apt to get out of order, closed tightly so that no dust or moisture can getinto it, and in which the parts can easily be interchanged and one substituted for the other, thus preventing undue Wear of certain parts.

The invention consists in the construction zo and combination of parts and details, as will be fully described hereinafter, and finally pointed out in the claims.

Figure l of the accompanying drawings represents a longitudinal section of this im- `z5 proved counting device, a portion of the counting-wheels being in edge elevation. Fig. 2 represent-s a side elevation of the counting device, showing the covered slot through whichthe proper figures on the countingwheels may be read. Fig..3 represents the left-hand end of the device, the head being shown as integral with the casing and the counting-wheel shaft as having a clampingnut. Fig. 4 represents a transverse section of the counting device on line 4 4 of Fig. l. Fig. 5 represents an elevation of one side of one of the counting-Wheels and a portion of the mechanism for communicating `motion from one wheel to another. Fig. .G is a side 4o elevation of the other side of one of the counting-wheels. Fig. 7 represents a transverse section of the counting-Wheel shaft and a side elevation of one of the cams fixed thereon for actuating a counting-wheel. Fig. 8 representsa transverse section of this improved counting device on line S S of Fig. l. Figs. 9, 10, ll, and 12 represent transverse sections of the counting-wheel shaft, the fixed cam thereon, and side elevations of the same 5o side of one of the counting-wheels, showing the different positions thereof in relation to the actuating-cam. Fig. 13 is a side elevation of one of the counting-wheels, showing the track of the pawl thereon.

Similar letters of reference indicate corresponding parts.

The counting-wheels Z Z2 Z3 ZAl Z5 ZG Zl,on the rims of which the numerals 0, l, 2, 3, 4,

5, G, 7, 8, and 9 are produced in any suitable manner, are mounted close to each other on 6o the central longitudinal shaft A of the eylindrical casing, the latter having a longitudinal slot B, through which one row of numerals of the number-wheels Z Z2, duc., show.

The casing is composed of a cylinder C and the two heads D and D?, into which the ends of the shaft A are screwed. If desired, the head D may be made integral with the cylinder O and the left-hand end of the shaft A provided with a threaded end, which projects 7o through said closed end of the cylinder, and a a nut M (see Fig. 3) is then screwed on said p-rojecting end of the shaft. The shaft A thus also serves for holding the two heads or ends firmly on the cylinder. The said shaft A is provided with a longitudinal bore f, from which a series of channels f extends radially to the surface of the shaft, forming oil-ducts by means of which the apparatus can be lubricated. A screw f2 is screwed into the end 8o of the bore f after the oil has been supplied, for the p urpose of excluding dust and dirt. The slot B is to be closed ,by a suitable pane of glass for the purpose of excluding dust, which glass plate, however, is so arranged that it can be removed to permit of adjusting the single-number wheels.

In order to prevent dust, the., from passing into the mechanism, the units-wheel Z is not driven by means of a pin or other device pass- 9o ing through a slot in the end of the casing, as has been customary heretofore, but is operated by an actuating-shaft H, that is passed through a collar or projection O on the outer surface of the head D2, and provided at its outer end with a crank 1V, to which the rod or mechanism is applied that is operated by' the machine or other device, the strokes, ro tations, or reciprocations of which are to be counted.

On theinner end of the shaft H is pivotally mounted the lever U, the said lever having an elliptical slot or opening, the walls of which surround and are adapted to contact with the shaft A. On the swinging end of said lever a pawl 7c is mounted, which is provided at one end with a recess or notch for receiving the pins projecting from the units-wheel Z, and at the other end it is provided with an arm k', which is pressed against the stop-pin a by a spring t, secured on said lever U. A check-pawl h, also having one end recessed to receive the said pins on the units-wheel, is pivoted to the inner side of the head D2 and is provided with an arm h', which is pressed against a stop-pin c by a spring h2.

From one side of each number-wheel Z Z2, dac., ten pins s0 s s2 s3 s4, tbc., project laterally and are equidistant from one another. On the opposite side of each wheel a lever K is pivoted at K', and is provided on its swinging end with a laterally-projecting pawl E, ina-de approximately triangular in shape and having its top slightly beveled. A spring F secured to the side of the wheel presses saidl lever K against a stop-pin J. Between each two number-wheels a split collar L is clamped by a screw T, in a Xed position on the shaft A, and said collar is provided with a downwardly-projecting arm N, having a cam P", the bottom edge of whichk is curved concentric-with the center of the shaft A, between the points P and Q, (see Figs. 5 and 7,) and from the point Q to the point R is curved upward.

As shown in Fig. 1, the rims of the wheels Z Z2, (te, are formed with annular iianges projecting from both sides of the body, thus forming a recess between each two wheels, in which recesses are mounted the simple mechanisms for communicating motion from one wheel to another. It is evident that the wh eel counting units makes ten times as many rotations as the wheel counting tens, and the wheel counting tens ten times as many rotations as the wheel counting hundreds, and so on. The wheel counting units will wear out about ten times as soon as the tens-wheel, and would have to b'ereplac'ed rst of all'. As all the counting-wheels are alike in construction and shape, one can be replaced by another, and after the apparatus has been used for a time the units-wheel, which has been used most, can be substituted for the last wheel', in this case the millions-wheel and all the other wheels moved to the right the distance of one wheel, and so on. The wheels can thus be interchanged seven times, if seven wheels are used, as in the case shown, and thus the apparatus will last seven times as long as the ordinary count-ing apparatus.

The operation is as follows: the arm W' is rocked to and fro and thepawl 71; of the lever U acts directly on the pins S0 s s2 s2, rbc., of the units-wheel Z. Then the said arm WV swings in the direction of the arrow fr', Fig. 4, the pawl 7c engages one of the pins on the units-wheel and turns said wheel in the direction of the arrow m2 (see Fig. 4) until the left- 'onenu'mbeig remains stationary.

of an adjacent wheel.

hand inner edge of the ring-shaped lever U strikes against the hub of the units-wheel, whereby the units-wheel has been rotated in the direction of the arrow m2 the distance of one tooth. When the arm W is swung back in the reverse direction of the arrow its pawl la is vdepressed by contact with the next pin s0 3', ttc., to the left until it clears the same, when by the action of the spring tit rises so as to engage the said pin. The pawl h prevents the units-wheel Z' from v moving in the reverse direction of the arrow x2. The pawls E on the number-wheels are :normally in the position shown in Figs. 6, 10, and l l-that is to say, they are pressed against their respective stop-pins J bythe springs F. lVhen a pawl E arrives at the bottom, it abuts against the upwardly-proj ecting end of the cam P", and is thereby pressed down, as shown in Figs. 5 and 8, and engages one of the pins s" to s2 of the adjacent counting-wheel, whereby said'pin and its wheel are carried around the distance of one numeral.` By the time that said wheel has been rotated the distance of one numeral the pawl E, that has just been subjected to the action of the cam P', arrives at theend of said cam' at P and is thrown toward the center-that is, against the stop-pin J bythe spring F-whereby said pawl is disengaged from one of said pins and the number-wheel, that has just been rotating the distance Vof Only during the one-tenth of a rotation does the pawl E of anyone wheel remain engaged witha pin The units-wheel o nce in each rotation rotates the tens wheel Z2 one-tenth-that is, a distance of one numeral,

After the glass plate covering the slot B -has been removed from said slot any one of `the number-wheels can be adj usted to show the zero' or any desired number on the face without interfering with any of the other wheels.

Having thus described my invention, l claim as new and desire to secure by Letters Patent Y l l. InA a counting device, the combination of a flvedl shaft, a rotatable number-wheel'thereon, provided with a flanged rimv and having pins projecting from one of its sides within said hanged rim, an actuating-shaft parallel to said iXed shaft, a lever loosely mounted on said actuatii'igshaft and havingl an elliptical slot therein, and a spring-pressed pawl on the free end of said lever adapted to engage' the pins of saidv numb'enwheel, the walls of the elliptical slot surrounding and being adapted to coact with said fixed shaft. v

2. Ina counting device, the combination of a xed shaft, two or more number-wheels-provided with flanged rims and mounted on said shaft, an actu ating-shaft parallel to said' fixed IOO IIO

shaft, a crank-arm on said actuating-Shaft, a l spring-pressed pawl adapted to engage the Io lever having an ellipticalslot mounted on pins of the adjacent Wheel. said actuating-shaft, a Spring-pressed paWl In testimony that I olailn the foregoing as on said lever, fixed arms on said fixed shaft my invention I have Signed my naine in pres- 5 between said number-wheels, and cams on ence of two subscribing Witnesses.

the ends of said arms, each of said nninber- RUDOLF HUNDHAUSEN.

wheels having on one of its sides and Within lVitnesses: the flanged rim thereof projecting pins, and B. ROI, on the other side a pivoted lever with a F. vON VERRIN. 

